Utilities.h

#pragma once

static inline float map(float x, float in_min, float in_max, float out_min, float out_max);

static inline float constrain(float x, float min_val, float max_val);

static inline float min(float x, float y);

static inline float max(float x, float y);

 
// map()
//
// Scale an input value from one range to another. Works like its Wiring language equivalent.
// x is the value to scale; in_min and in_max are the input range; out_min and out_max
// are the output range.
 
static inline float map(float x, float in_min, float in_max, float out_min, float out_max)
{
        return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
}
 
// constrain()
//
// Clips an input value to be between two end points
// x is the value to constrain; min_val and max_val are the range
 
static inline float constrain(float x, float min_val, float max_val)
{
        if(x < min_val) return min_val;
        if(x > max_val) return max_val;
        return x;
}
 
static inline float max(float x, float y){
        return x > y ? x : y;
}
 
static inline float min(float x, float y){
        return x < y ? x : y;
}